TaxNo: 5981Episageceras antiquum
| Suborder: |
Prolecanitina
|
| Superfamily: |
Medlicottioidea
|
| Family: |
Medlicottiidae
|
| Subfamily: |
Episageceratinae
|
| Genus: |
Episageceras
|
| Species: | antiquum |
| Qualifier: | ss |
| Author: |
Popov 1961,p.11
|
| Lower Boundary: |
Permian--Triassic (Induan base), 251 million years
|
| Upper Boundary: |
Induan--Olenekian, Dienerian--Smithian, 249.7 million years
|